Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"chu anh son snippets" » "chu manh son snippets", "cuu anh son snippets", "chi anh son snippets", "chu anh dong snippets", "chu tinh son snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("chu anh son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("chu anh son snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( chu anh son snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("chu anh son snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.